Unlock instant, AI-driven research and patent intelligence for your innovation.

Suspension and damping device for motor vehicles

a suspension and damping device technology, applied in the direction of springs, vibration dampers, springs/dampers, etc., can solve the problems of large installation volume and weight, and large heating of hydraulic medium, etc., to achieve compact and simple overall form.

Inactive Publication Date: 2006-02-02
HEMSCHEIDT FAHRWERKTECH
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a suspension and damping device that has optimized suspension and damping properties in a compact and simple overall form. The device includes a piston that separates two working chambers within the cylinder, one for the spring and the other for the damping. This separation of the hydraulic damping circuit from the spring medium via the piston results in a spring strut in the conventional sense. The technical effect of this invention is to provide an efficient and effective suspension and damping system that is compact and easy to use.

Problems solved by technology

The known suspension and damping device has a relatively complicated construction, however, which also becomes apparent by a relatively large installation volume and weight.
However, the hydraulic medium is heated rapidly and to a certain extent severely as a result of the damping (throttling).
Unfavorable, widely varying suspension and damping properties result from this thermal effect.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Suspension and damping device for motor vehicles
  • Suspension and damping device for motor vehicles
  • Suspension and damping device for motor vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In the different figures of the drawing, parts and components which are identical or which correspond to one another in functional terms are provided with the same number designations. Every description of a part which refers to one or more specified figures of the drawing thus also applies analogously with regard to the other figures of the drawing in which the part with the corresponding designation can likewise be seen.

[0017] In all the exemplary embodiments, a suspension and damping device 1 according to the invention comprises (at least) one spring cylinder assembly 2 which is provided for the direct arrangement between a vehicle wheel or a wheel strut supporting arm and a vehicle frame (neither of which is shown). In a telescopic manner, the spring cylinder assembly 2 comprises a cylinder 4 and a piston 6 which is guided so as to be displaceable linearly therein and has a piston rod 8 which is guided out of the cylinder 4 such that it is circumferentially sealed.

[0018...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a suspension and damping device (1) for load bearing and sprung wheel support and for damping suspension movements in a motor vehicle, having at least one spring cylinder (2) having a piston (6) which is guided in a cylinder (4) so as to be movable relative to the cylinder and which acts counter to an elastically compressible spring medium (FM) in order to generate a load bearing supporting spring force (F). A separate circuit of a hydraulic damping medium (DM) which is independent of the spring medium (FM) is provided for damping. The piston (6) separates two working chambers (10, 12) from one another within the cylinder (4). One working chamber (10) is assigned to the spring medium (FM) and the other working chamber (12) is assigned to the damping medium (DM).

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims priority to German patent application 20 2004 005 623.2, filed Apr. 8, 2004 and U.S. provisional patent application 60 / 668,773, filed Apr. 6, 2005. FIELD OF THE INVENTION [0002] The present invention relates to a suspension and damping device for load bearing and sprung wheel support and for damping suspension movements in a motor vehicle. More specifically, the invention includes at least one spring cylinder having a piston which is guided in a cylinder so as to be movable relative to said cylinder and which acts counter to an elastically compressible spring medium in order to generate a load bearing supporting spring force, a separate circuit of a hydraulic damping medium which is independent of the spring medium being provided for damping. BACKGROUND OF THE INVENTION [0003] WO 03 / 106202 A1 describes a suspension device of the general type of the present invention including a damping device having a separate cir...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F16F9/00
CPCF16F9/096F16F9/064
Inventor RUNKEL, WALTER
Owner HEMSCHEIDT FAHRWERKTECH